TY  - JOUR
T1  - Sorghum Halepense Külü Kullanılarak Malahit Yeşili Boya Giderimi: Etkili Parametrelerin İncelenmesi
TT  - Malachite Green Dye Removal Using Sorghum Halepense Ash: Investigation of Effective Parameters
AU  - Onay, Muhammed
PY  - 2025
DA  - November
Y2  - 2025
DO  - 10.21597/jist.1594858
JF  - Journal of the Institute of Science and Technology
JO  - J. Inst. Sci. and Tech.
PB  - Iğdır Üniversitesi
WT  - DergiPark
SN  - 2536-4618
SP  - 1383
EP  - 1396
VL  - 15
IS  - 4
LA  - tr
AB  - Bu çalışmada, tarımsal üretimde ‘yabancı ot’ olarak adlandırılan, istenmeyen ürün olan kanyaş otunun (Sorghum halepense) külü kullanılarak, endüstride sıkça kullanılan toksik etkiye sahip Malahit yeşili boyar maddesinin adsorpsiyon yöntemi ile giderimi incelenmiştir. Kesikli (batch) adsorpsiyon sistemi ile gerçekleştirilen deneylerle başlangıç boyar madde konsantrasyonunun (50-250 ppm), adsorban miktarının (1-3 g), temas süresinin (30-120 dk) ve sıcaklığın (20-60 °C) adsorplama verimi üzerine etkileri incelenmiştir. Kullanılan adsorbanın adsorpsiyon sistemine uygunluğunu karakterize etmek için Taramalı Elektron Mikroskobu (SEM), Fourier Dönüşümlü Kızılötesi spektroskopisi (FTIR) ve X-Işını Kırınım yöntemi (XRD) kullanılmıştır. Elde edilen sonuçlara göre, başlangıç boya konsantrasyonunun 150 mg/L, adsorban miktarının 2 g, temas süresinin 90 dk ve sıcaklığın 60 °C olduğu koşullar altında boya giderim veriminin %91.42 olduğu belirlenmiştir. Denge çalışmaları kapsamında adsorpsiyonun hangi izoterme daha uygun olduğunu belirlemek için Freundlich, Langmuir ve Temkin izoterm modelleri deneysel değerlere uygulanmıştır. En iyi uyum sağlayan modelin Freundlich modeli (R2:0.999) olduğu tespit edilmiştir. Bu modele göre adsorpsiyonun tabakalı ve heterojen yüzeye sahip olduğu SEM analizleriyle de desteklenmiştir. Ayrıca birim kanyaş otu külü başına giderilen maksimum malahit yeşili miktarı (Q0) 17.452 mg/g olarak hesaplanmıştır. Kanyaş otu külünün; doğal, kolay temin edilmesi, sürdürülebilir ve çevre dostu bir adsorban olarak kimyasal bir ön işlem olmadan katyonik boyar maddelerin gideriminde kullanımının uygunluğu bu çalışma ile ortaya koyulmuştur.
KW  - Adsorpsiyon
KW  - Tarımsal atık
KW  - izoterm
KW  - Sürdürülebilirlik
KW  - Boyar madde
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UR  - https://doi.org/10.21597/jist.1594858
L1  - https://dergipark.org.tr/tr/download/article-file/4409935
ER  -